I am still making my way through this book but have read enough that allows me to make an informed opinion.
It's a fairly large book (I have the hardback version) with a lot of information held within. It can be read either from start to finish, by subject, or simply be dipping in and reading randomly. It contains a lot of different information ranging from the reliablity and origin of the Bible to the evidence put forward for not only the existence of Jesus as a person but also as the divine son of God. Most of the questions that those who either do not believe but are genuninely interested ask, or those that maliciously attack the Christian with questions of a nature in which they try to make out they have studied the Bible and all the evidence from a philosopical bent (you know the type I mean) ask to try and catch you out, can be answered from within the pages of this book.
I sometimes found it hard going but overall a vary easy book to get on with that contains a lot of useful information that will help the Christian witness even agaisnt those malcious types mentioned above.